無駄骨
Noun
1
noun (common) (futsuumeishi)
wasted effort;fruitless effort;vain efforts
Other forms
徒骨 【むだぼね】 (rarely used kanji form) · ムダ骨 【むだぼね】 (search-only kanji form) · むだ骨 【むだぼね】 (search-only kanji form)